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Infectious Diseases

Bird flu, malaria, plague and West Nile virus are infectious diseases we've all heard of. Find information on these epidemics and more in this section.

Are we on the brink of an AIDS vaccine?

A research group in Atlanta has developed an AIDS vaccine that shows 96 percent effectiveness in non-human, pre-clinical trials. It's already in Phase I human trials and could be on the market within four years.

Will there be new STDs in the future?

Syphilis, gonorrhea, chlamydia -- no one wants to hear those words from their doctor. Are these all we have to worry about, or are there other sexually transmitted horrors in the making? See more »

10 Deadly Agents the CDC Works With

Modern medicine may be here, but there are still plenty of infectious diseases to combat, and the CDC is really busy doing that. Get to know 10 of these public (health) enemies. See more »

5 Ways You Still Can't Get Ebola

You may not know how to pull on personal protection equipment like a health care pro, but we bet you've learned a lot about Ebola and its transmission since it hit the news. Or have you? See more »

How Leper Colonies (Leprosaria) Work

Leprosy was the AIDS of the first millennium – a disfiguring disease that struck terror since people thought it was easy to contract. Patients were banished to live in colonies. What was life like there? See more »

10 Diseases That Used to Be Death Sentences

Pneumonia and diarrhea used to be bigger killers, but nowadays, developed countries can successfully treat them. Which other diseases are no longer death sentences? See more »

5 Germs You Really Can Get From a Toilet

No one thinks public toilets are altars of tidiness, but are they actually dangerous? The odds of catching something from a public bathroom are low -- but it's possible. See more »

How Ebola Works

If you've seen the movie "Outbreak," you may think you know Ebola. You don't. For one, you don't necessarily die from this hemorrhagic fever. For another, people infected with it don't always wind up bleeding out of their various orifices. See more »

5 Rare Parasites Found in the Human Body

Parasites are common, and many are harmless. But we're willing to bet that you'd go to almost any length to avoid spending time with the five on this list. See more »

Cold sores are painful blisters that appear on or around the lips. Learn what causes cold sores in this article. See more »

There are several SARS conspiracy theories, including the act of biological warfare by the United States. Learn more about the SARS conspiracy theory from this article. See more »